/*
 * paint.c - 使用条件去处符
 */

#include <stdio.h>
#define COVERAGE 200

int main(void)
{
    int sq_feet;
    int cans;
    printf("Enter number of square feedt to be painted\n");
    while ((scanf("%d",&sq_feet)) == 1) {
        cans = sq_feet / COVERAGE;
        cans += (sq_feet % COVERAGE == 0) ? 0 : 1;
        printf("You need %d %s of paint.\n", cans, cans == 1 ? "can" : "cans");
        printf("Enter next value(q to quit): \n");
    }
    return 0;
}
